I don't know what you're passing through, I don't know what your spouse or your ex has made you passed through, but hey, draw your chair closer let me give you a word or two.
On its own, life without a spouse or a partner is really difficult, talk more of having somebody you have to consult before making a decision or doing something.
I don't know what you've been through in the hands of your partner, I don't know how badly they treated you, I don't know what happened but you have to actually get your shit together and try your best to move on without them. This is life, it's cruel, and you get disappointed by the ones you trust to the core, but then, in other to survive, you have to be strong enough to move on.
Quick question, would you want to seat back every day and think of somebody that is not God enough for you? Would you want to waste your time, and mental energy, thinking of ways to rekindle your already broken relationship or would you want to learn from your mistakes, and kiss your past goodbye? If you are unable to move on, then trust me, you will do yourself more harm than good. It's difficult, yes, but you got this.